CN1080142C - Two stream tangential entry nozzle - Google Patents
Two stream tangential entry nozzle Download PDFInfo
- Publication number
- CN1080142C CN1080142C CN97125763A CN97125763A CN1080142C CN 1080142 C CN1080142 C CN 1080142C CN 97125763 A CN97125763 A CN 97125763A CN 97125763 A CN97125763 A CN 97125763A CN 1080142 C CN1080142 C CN 1080142C
- Authority
- CN
- China
- Prior art keywords
- longitudinal axis
- cylindrical
- channel
- cylindrical channel
- coaxial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 claims abstract description 59
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 239000011148 porous material Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 14
- 239000007789 gas Substances 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
- F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/30—Arrangement of components
- F05B2250/32—Arrangement of components according to their shape
- F05B2250/322—Arrangement of components according to their shape tangential
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/07002—Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2206/00—Burners for specific applications
- F23D2206/10—Turbines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spray-Type Burners (AREA)
Abstract
A tangential air entry fuel nozzle has a combustor inlet port to permit air and fuel to exit into a combustor. The port includes a convergent surface, a divergent surface, and a cylindrical surface extending therebetween. The convergent surface extends a first distance along the longitudinal axis of the nozzle, the cylindrical surface extends a second distance along the axis, and the second distance is at least 5% of the first distance.
Description
The present invention relates to the nozzle of low NOx premixed fuel, more particularly, relate to the nozzle that is used in the gas turbine.
Nitrogen oxide (hereinafter being called NOx) is produced under high-temp combustion.NOx is well-known pollutant, and therefore, the burner that generates NOx is subjected to the restriction of strict more pollutant emission standard.Like this, people are being devoted to reduce the generation of NOx in the burner with redoubling efforts to do it.
Wherein a solution is that fuel and excessive air pre-mixing are closed, and like this, is attended by local higher excess air when burning, and the result has caused lower ignition temperature and made the NOx of generation drop to bottom line.The fuel nozzle of working by this way is disclosed in U.S. Pat 5,307, in 634, this Patent publish a kind of scroll casing type cyclone with a circular cone centerbody.This fuel nozzle is the known formula that tangentially enters fuel nozzle.It comprises two camcylinder arc spiral cases that link to each other with end plate.Combustion air enters cyclone by two roughly rectangular slit mouths that formed by eccentric spiral case, and discharges by the burner inlet on the end plate, flows into burner then.By be arranged in the opposed outer spiral casing of trailing edge on aperture arranged in a straight line fuel is sprayed into air stream at each inlet seam from house steward, before flowing into burner, to produce uniform fuel air mixture.
It is lower with respect to existing fuel nozzle NOx discharge capacity tangentially to enter formula premixed fuel nozzle.Those disclosed nozzle in the unfortunate above-mentioned patent is because flame partly touches the centerbody of nozzle, so its working life is shorter when they are used on the gas turbine, this is unsafty.Therefore, such tangential entry nozzle is of no use on commercially available gas turbine.
We are needed to be a kind of formula that tangentially enters fuel nozzle that the nozzle of its service life as compared prior art improves greatly when being used on the gas turbine.
Therefore, an object of the present invention is to provide the fuel nozzle of a kind of low NOx, its working life was much higher than existing nozzle when it was used on the gas turbine.Par another object of the present invention provide a kind of formula fuel nozzle that tangentially enters, it can reduce the possibility of flame contact centerbody significantly, can keep producing simultaneously the NOx of reduced levels.
Therefore, tangential air of the present invention enters fuel nozzle and has a longitudinal axis and two cylinder arc spiral cases that center line departs from mutually.The end of these spiral cases overlaps, thereby is formed for air/fuel mixture is introduced the air intake groove of fuel nozzle between them.The end plate of burner end has one can make the air of nozzle discharge and the burner inlet that fuel enters burner.This inlet comprises a shrinkage surface, an extended surface and a cylindrical surface that extends between them.Shrinkage surface is extended first distance along the longitudinal axis of nozzle, and cylindrical surface extends second distance along this axle, and this second distance is 5% of first distance at least.The other end plate resistance retaining nozzle circulating area relative with the end plate of this burner end, and spiral case is fixed between these two end plates.
Have radially-outer surface between spiral case and with the coaxial centerbody of above-mentioned axle, this outer surface comprises a cylindrical part that limits an and qualification cylinder outer surface coaxial with the longitudinal axis with the frustum part of the coaxial frustum outer surface of the longitudinal axis and.Centerbody has a base, and this base comprises air outlet and internal channel that at least one runs through this base.The frustum part is shunk towards the exhaust outlet direction of internal channel, and cylindrical part is between the plane at frustum part and exhaust outlet place.Fuel nozzle is coaxial and pass base and end at then fuel is transported in the internal channel of the air-flow in the centerbody with the longitudinal axis.
Fig. 1 is the transverse sectional view along the fuel nozzle of the present invention of the 1-1 line intercepting of Fig. 2;
Fig. 2 is the transverse sectional view along the 2-2 line intercepting of Fig. 1;
Fig. 3 is the transverse sectional view along the fuel nozzle of the present invention of the 3-3 line intercepting of Fig. 2.
Referring to Fig. 1, the pre-mix nozzle 1O of low NOx of the present invention comprises a centerbody 12 that is positioned at scroll casing type cyclone 14.This scroll casing type cyclone 14 has that first and second end plates, 16,18, first end plate links to each other with centerbody 12 and separates with second end plate 18 and is provided with, and second end plate has the burner inlet 20 that runs through this plate.A plurality of (being preferably two) cylinder arc spiral case parts 22,24 extend to second end plate 18 from first end plate 16.
Each spiral case 22 all is spaced apart with respect to another spiral case 24, and the center line 32,34 of each spiral case 22,24 is positioned at mixed zone 28 (as shown in Figure 2).Referring to Fig. 3, each center line 32,34 is all parallel and separate with respect to the longitudinal axis 26, institute's own centre line 32,34 is all equidistant with respect to the longitudinal axis 26, thereby limits inlet slot 36,38, they extend along the direction that is parallel to the longitudinal axis 26 between each is to adjacent spiral case parts 22,24, so that combustion air 40 can be introduced mixed zone 28.Flow through the inlet slot 36,38 of overlapping ends 44,50,48,46 formation of the spiral case parts 22,24 of setovering by center line 32,34 from the combustion air 42 of compressor (not shown).
Each spiral case parts 22,24 also comprises a cartridge 52,54 that is used for being introduced in the combustion air 40 when fuel enters mixed zone 28 by an inlet slot 36,38.Can provide the first feeder sleeve (not shown) of liquid state or gaseous state (but preferably gaseous state) fuel to be connected on each cartridge 52,54.Be positioned at position near burner 56 with the coaxial burner inlet 20 of the longitudinal axis 26, so that will be transported in the burner 56 from fuel of the present invention and combustion air, fuel and air burn in burner.
Referring to Fig. 1, centerbody 12 has a base 58 again, and this base has one at least, best a plurality of air supply openings 60,62 that run through its extension, and base 58 is perpendicular to the longitudinal axis 26 that passes this base.Centerbody 12 also has an internal channel 64 coaxial with the longitudinal axis 26.In a preferred embodiment of the invention, internal channel 64 comprises that first cylindrical channel 66 with first end 68 and second end 70 and diameter are greater than first cylindrical channel 66 and have first end 74 equally and second cylindrical channel 72 of second end 76.Second cylindrical channel 72 communicates with first cylindrical channel 66 by a conicylindrical passage 78.This conicylindrical passage 78 has diameter and equals first end 80 of first cylindrical channel, 66 diameters and second end 82 that diameter equals second cylindrical channel, 72 diameters.Every passage 66,72,78 is all coaxial with the longitudinal axis 26, and second end 70 of first end 80 of conicylindrical passage 78 and first cylindrical channel 66 is in aggregates, and first end 74 of second end 82 of conicylindrical passage 78 and second cylindrical channel 72 is in aggregates.First cylindrical channel 66 comprises a steam vent 68, and this hole is circular and coaxial with the longitudinal axis 26, and it is positioned on first end 68 of first cylindrical channel 66.
Referring to Fig. 3, the radially-outer surface of centerbody 12 comprise one limit one with the longitudinal axis 26 the frustum part 86 of frustum outer surface coaxial and that expand towards base 58 directions and the cylindrical part 88 that fuses with this frustum part 86, this cylindrical part defines a cylindrical surface, and coaxial with axle 26.In the preferred embodiment, cylindrical part 88 ends on the plane at steam vent 68 places, frustum part 86 is bigger 2.65 times than the diameter of frustum part 86 at vertex of a cone place at the diameter at base 58 places, and the height 90 of frustum part 86 (distance between the plane at the plane of base 58 and cone table 86 intersections and the vertex of a cone place of frustum part 86) is approximately frustum part 86 1.3 times at the diameter at base 58 places.Cylindrical part 88 is between frustum part 86 and steam vent 68.As shown in Figure 3, internal channel 64 is radially surrounded by the radially-outer surface of centerbody 12, and this frustum part 86 is coaxial with the longitudinal axis 26, and centerbody 12 is connected on the base 58, makes frustum part 86 attenuate and end at cylindrical part 88 towards cylindrical part 88 directions.As shown in Figure 2, be connected in the base of frustum 86 is assemblied on the circle 92 of mixed zone 28, the center of circle 94 of circle 92 is positioned on the longitudinal axis 26.Those skilled in the art are readily appreciated that, the cross section of mixed zone 28 is not necessarily circular.
Referring to Fig. 1, in the centerbody 12 of inner chamber 100 between second end 76 of the base 58 and second cylindrical channel 72, and this second cylindrical channel 72 ends at inner chamber 100.Carry air 102 by the air outlet 60,62 that is communicated with inner chamber 100 on the base 58 to inner chamber 100, inner chamber 100 offers internal channel 64 with second end 76 of air by second cylindrical channel 72 again.Have perforate 104,106 on first end plate 16, the air outlet 60,62 on they and the base 58 aligns, and can not influence flowing from the combustion air 102 of the compressor of gas turbine like this.Cyclone 108 (being preferably the streaming cyclone of radially going into of the prior art) and the longitudinal axis 26 are coaxial and be positioned at second end 76 places of inner chamber 100 near second cylindrical channel 72, all must be by cyclone 108 so that enter all air of internal channel 64 from inner chamber 100.
Also pass second cylindrical channel 72 that base 58, inner chamber 100 and cyclone 108 enter internal channel 64 with the coaxial fuel nozzle 110 of the longitudinal axis 26.Second cylindrical channel 72 comprised the cross-sectional area of fuel nozzle 110 than major diameter, thereby make the circulation area of second cylindrical channel 72 be substantially equal to the circulation area of first cylindrical channel 66.Can provide the second fuel feed line (not shown) of liquid or gaseous fuel to be connected on the fuel nozzle 110, so that fuel is offered internal channel 112 in the fuel nozzle 110.Fuel nozzle ports 114 is located on the fuel nozzle 110 and to fuel path is provided, so that fuel can enter internal channel 64 from fuel nozzle 110.
Referring to Fig. 3, burner inlet 20 and the longitudinal axis 26 are coaxial and a shrinkage surface 116, an extended surface 117 and a cylindrical surface 118 are arranged, and surface 118 defines the throat plane 120 of an inlet 20.Shrinkage surface 116, extended surface 117 and cylindrical surface 118 are all coaxial with the longitudinal axis 26, and shrinkage surface 116 is between first end plate 16 and cylindrical surface 118.Shrinkage surface 116 is essentially conical and shrinks towards the direction of cylindrical surface 118, and extended surface preferably limits around the longitudinal axis 26 rotations by the part of ellipse.
In when operation, the inner chamber 100 that enters centerbody 12 from the compressor and the air feed mouth 60,62 on combustion air flow via hole 104,106 and the base 58 of gas turbine.Combustion air flows out inner chambers 100 by the cyclone 108 of radially becoming a mandarin, then to enter internal channel 64 with respect to the roughly tangential speed of the longitudinal axis 26 or with cyclone mode.When this swirl flow combustion air passed through fuel nozzle 110, fuel (being preferably gaseous form) sprayed into the internal channel 64 and with the combustion air of eddy flow from fuel nozzle 110 and mixes.Then, the mixture of fuel and combustion air flows into first cylindrical channel 66 from second cylindrical channel 72 by tapered channel 78.Mixture flows through the whole length of first cylindrical channel 66 again, mixture is just flowing out from first cylindrical channel 66 from the very near part in the throat plane 120 of burner inlet 20 or at these 120 places, throat plane then, thereby the center stream of fuel/air mixture is provided.
Auxiliary combustion air from the compressor of gas turbine enters mixed zone 28 by each inlet slot 36,38.The fuel (preferably fuel gas) that to supply with cartridge 52,54 is ejected in the combustion air of the inlet slot 36,38 of flowing through and begins to mix with it.Because this shape of spiral case parts 22,24, make mixture form annular airflow, and this fuel/air mixture continue to mix in the eddy flow process around centerbody 12 eddy flows, the while flows to burner inlet 20 along the longitudinal axis 26.
In first cylindrical channel 66, by the eddy flow of the annular of scroll casing type cyclone 14 stream preferably and the eddy flow of fuel/air mixture together rotate, and its angular speed equals the angular speed of fuel/air mixture in first cylindrical channel 66 at least.Because remaining on, the shape of centerbody 12, the axial velocity of annular stream can prevent that burner flame from flowing in the spiral case cyclone 14 and be attached to the speed of the outer surface 84 of centerbody 12.When fuel/air mixture flows out first cylindrical channel 66, the eddy flow fuel/air mixture of center stream is surrounded by the circulation of spiral case cyclone 14, and this two plume radially flows in the cylindrical surface 118, the extended surface 117 of flowing through then flows to the pelvic outlet plane 124 of the burning inlet 20 in 28 downstreams, mixed zone always.
Its working life was much higher than existing nozzle when after testing, fuel nozzle 10 of the present invention was used on the gas turbine.In addition, nozzle of the present invention has reduced the possibility of flame contact centerbody significantly, can keep producing simultaneously the NOx of reduced levels.
Though the detailed embodiment of top reference illustrates and described the present invention, those skilled in the art are understood that, under the situation of design that does not exceed claim of the present invention and limited and scope, can do various conversion in the form and details.
Claims (4)
1. be used in the fuel nozzle assembly on the gas turbine, it comprises:
A centerbody, it comprises
A longitudinal axis,
A centerbody base, described base have at least one and run through its air outlet,
A radially-outer surface, comprise a frustum part that limits a frustum outer surface, this frustum is coaxial and expand towards frustum base direction with the longitudinal axis, and comprise a cylindrical part, it and frustum partly are linked to be an integral body, and preferably define cylindrical outer surface, described frustum part is between described cylindrical part and described center line
An internal channel, it is coaxial and comprise first cylindrical channel with the longitudinal axis, second cylindrical channel and tapered channel, each passage all has first end and second end, the diameter of described second cylindrical channel is greater than the diameter of described first cylindrical channel, described second cylindrical channel is communicated with described first cylindrical channel by described tapered channel, described second end of first end of described tapered channel and described first cylindrical channel is linked to be an integral body, second end of described tapered channel and first end of second cylindrical channel are linked to be an integral body, the diameter of first end of described tapered channel equals the diameter of first cylindrical channel, the diameter of second end of described tapered channel equals the diameter of second cylindrical channel, each described passage is coaxial with the longitudinal axis, described first cylindrical channel has a circular row pore, the described axle of this steam vent is coaxial and be positioned at first end of described first cylindrical channel
An inner chamber, it is between described second end of described centerbody base and described second cylindrical channel, and described air outlet is communicated with described second cylindrical channel by described inner chamber,
A cyclone, it is coaxial and be arranged in second end of inner chamber near second cylindrical channel with the longitudinal axis,
A fuel nozzle, it is coaxial and pass described centerbody base, described inner chamber and described cyclone with the longitudinal axis, and ends in described second cylindrical channel; And
A scroll casing type cyclone, it has
First and second end plates, described first end plate and described second end plate are separated setting, described second end plate has a burner inlet that runs through, described inlet is coaxial and comprise a shrinkage surface, an extended surface and a cylindrical surface that extends to described extended surface from described shrinkage surface with the described longitudinal axis
At least two cylinder arc spiral case parts, each spiral case parts all limits one around the rotating main body of center line part, each described spiral case parts extends to described second end plate and centers on the longitudinal axis from described first end plate to be separated equably, thereby between them, limit a mixed zone, each described center line is positioned at described mixed zone, each described center line is separated with respect to the described longitudinal axis, equidistant and parallel apart from the described longitudinal axis with the described longitudinal axis, be parallel to the inlet slot that the described longitudinal axis extends thereby limit, these inlet slots are between every pair of adjacent spiral case parts, in order to combustion air is introduced described mixed zone, each described spiral case parts all has a cartridge, is used for fuel is introduced in the combustion air that a described inlet slot flows into;
Wherein said first end plate is connected on the described centerbody.
2. according to the fuel nozzle assembly of claim 1, wherein said shrinkage surface is extended first distance along the described longitudinal axis, and described cylindrical surface extends second distance along the described longitudinal axis, and described second distance is at least 5% of first distance.
3. according to the fuel nozzle assembly of claim 1, wherein said cylindrical surface is positioned at apart from this predetermined radii place, and this predetermined radii radius than the frustum parts of its base position at least is little by 10%.
4. according to the fuel nozzle assembly of claim 3, wherein said shrinkage surface is extended first distance along the described longitudinal axis, and described cylindrical surface extends second distance along the described longitudinal axis, and described second distance is at least 5% of first distance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US770281 | 1996-12-20 | ||
| US08/770,281 US5735466A (en) | 1996-12-20 | 1996-12-20 | Two stream tangential entry nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1187581A CN1187581A (en) | 1998-07-15 |
| CN1080142C true CN1080142C (en) | 2002-03-06 |
Family
ID=25088044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97125763A Expired - Fee Related CN1080142C (en) | 1996-12-20 | 1997-12-19 | Two stream tangential entry nozzle |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5735466A (en) |
| JP (1) | JPH10205756A (en) |
| CN (1) | CN1080142C (en) |
| CA (1) | CA2225309A1 (en) |
| RU (1) | RU2200250C2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6098407A (en) * | 1998-06-08 | 2000-08-08 | United Technologies Corporation | Premixing fuel injector with improved secondary fuel-air injection |
| ITMI20012780A1 (en) * | 2001-12-21 | 2003-06-21 | Nuovo Pignone Spa | MAIN INJECTION DEVICE FOR LIQUID FUEL FOR SINGLE COMBUSTION CHAMBER EQUIPPED WITH PRE-MIXING CHAMBER OF A TU |
| EP2179222B2 (en) * | 2007-08-07 | 2021-12-01 | Ansaldo Energia IP UK Limited | Burner for a combustion chamber of a turbo group |
| US10107494B2 (en) * | 2014-04-22 | 2018-10-23 | Universal City Studios Llc | System and method for generating flame effect |
| CN104110698B (en) * | 2014-07-09 | 2017-11-07 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | A kind of pre-mixing nozzle for gas-turbine combustion chamber |
| RU2639775C1 (en) * | 2017-02-27 | 2017-12-22 | Олег Савельевич Кочетов | Injector with counter-directed conical swirlers |
| US10823418B2 (en) | 2017-03-02 | 2020-11-03 | General Electric Company | Gas turbine engine combustor comprising air inlet tubes arranged around the combustor |
| CN107321514B (en) * | 2017-06-06 | 2019-12-03 | 西安航天动力研究所 | A kind of solid cone shaped pressure atomized fog jet |
| CN113834094B (en) * | 2021-09-15 | 2022-11-01 | 中国船舶重工集团公司第七0三研究所 | Nozzle with tangential rotational flow structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431403A (en) * | 1981-04-23 | 1984-02-14 | Hauck Manufacturing Company | Burner and method |
| US5062792A (en) * | 1987-01-26 | 1991-11-05 | Siemens Aktiengesellschaft | Hybrid burner for a pre-mixing operation with gas and/or oil, in particular for gas turbine systems |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR976758A (en) * | 1948-10-15 | 1951-03-22 | Improvements to heavy oil burners | |
| US3633825A (en) * | 1970-03-17 | 1972-01-11 | David W Waldron | Fogging apparatus |
| SU787790A1 (en) * | 1978-01-17 | 1980-12-15 | Всесоюзный Научно-Исследовательский Институт Технического Углерода | Vortex-type acoustic sparyer |
| SU756135A1 (en) * | 1978-06-07 | 1980-08-15 | Ernest A Gudymov | Injection burner |
| SU1023107A1 (en) * | 1981-12-23 | 1983-06-15 | Восточный научно-исследовательский горнорудный институт | Arrangement for moistening rock mass in outlet funnel |
| DE3642122C1 (en) * | 1986-12-10 | 1988-06-09 | Mtu Muenchen Gmbh | Fuel injector |
-
1996
- 1996-12-20 US US08/770,281 patent/US5735466A/en not_active Expired - Lifetime
-
1997
- 1997-12-19 JP JP9365235A patent/JPH10205756A/en not_active Withdrawn
- 1997-12-19 CA CA002225309A patent/CA2225309A1/en not_active Abandoned
- 1997-12-19 CN CN97125763A patent/CN1080142C/en not_active Expired - Fee Related
- 1997-12-19 RU RU97121007/06A patent/RU2200250C2/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431403A (en) * | 1981-04-23 | 1984-02-14 | Hauck Manufacturing Company | Burner and method |
| US5062792A (en) * | 1987-01-26 | 1991-11-05 | Siemens Aktiengesellschaft | Hybrid burner for a pre-mixing operation with gas and/or oil, in particular for gas turbine systems |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2225309A1 (en) | 1998-06-20 |
| US5735466A (en) | 1998-04-07 |
| CN1187581A (en) | 1998-07-15 |
| JPH10205756A (en) | 1998-08-04 |
| RU2200250C2 (en) | 2003-03-10 |
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